Photos

(FILES) This undated file picture released from North Korea's official Korean Central News Agency (KCNA) on March 9, 2016 shows North Korean leader Kim Jong-Un (C) meeting with the scientists and technicians in the field of researches into nuclear weapons and guiding the work for boosting the nuclear arsenal at an undisclosed location.
Among the many challenges facing the next occupant of the White House, few will be more pressing, or more complex, than that posed by North Korea's seemingly inexorable drive to nuclear statehood. Pyongyang's weapons programme has accelerated sharply in this US election year, with two nuclear tests and around 25 missile tests in defiance of multiple UN resolutions and sanctions. / AFP PHOTO / KCNA / KCNAKCNA/AFP/Getty Images